MESON Chess Problem Database

Problem Display
PID: 186631 (8/2p3qn/K3R1rp/6kP/p2NBpp1/6N1/rB6/7R w - - 0 1)

Pointon, AJ

Chess, 1959

8/2p3qn/K3R1rp/6kP/p2NBpp1/6N1/rB6/7R

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Rxg6#
    • 1...Qe5
      • 2.Rxg6#
    • 1...Qf8
      • 2.Rxg6#
    • 1...Qh8
      • 2.Rxg6#
    • 1...Qd7
      • 2.Rxg6#
    • 1...Qe7
      • 2.Rxg6#
    • 1...Rxe6+
      • 2.Sxe6#
    • 1...Sf6
      • 2.Re5#
  • Keys
    • 1.Bc2!
      • threat
        • 2.Se4#
      • 1...Rxe6+
        • 2.Sxe6#
      • 1...Qxd4
        • 2.Rxg6#
      • 1...fxg3
        • 2.Bc1#
      • 1...f3
        • 2.Bc1#
      • 1...Qe5
        • 2.Rxg6#
      • 1...Sf6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(i);N_GUARD,XS(D)::R1(H),XR(f)
    • Q(i);N_GUARD::R1(H),XR(f)
    • R(f);CHECK,XR(H)::S(D),XR(f)
    • S(j);N_PINR(H),SBLOCK::R(H)
  • Actual
    • B(E);
    • Threat
      • S(C)
    • Vars
      • R(f);CHECK,XR(H)::S(D),XR(f)
      • Q(i);N_GUARD,XS(D)::R1(H),XR(f)
      • P(c);OGATEB,XS(C)::B(B)
      • P(c);OGATEB::B(B)
      • Q(i);N_GUARD::R1(H),XR(f)
      • S(j);N_PINR(H),SBLOCK::R(H)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).